diff --git a/redhat/dependencies/tqt3/tqt3-14.0.0.spec b/redhat/dependencies/tqt3/tqt3-14.0.0.spec
index c9a976b..d1a2843 100644
--- a/redhat/dependencies/tqt3/tqt3-14.0.0.spec
+++ b/redhat/dependencies/tqt3/tqt3-14.0.0.spec
@@ -473,10 +473,14 @@
##########
-
%prep
%setup -q -n %{name}-%{tde_version}%{?preversion:~%{preversion}}
+# Fix strange FTBFS on RHEL5
+%if 0%{?rhel} == 5
+%__sed -i src/kernel/ntqstyle.h -e "s|#ifdef ENABLE_TQSTYLECONTROLELEMENTDATA_SLOW_COPY|#if 1|"
+%endif
+
# fix variables in 'qmake.conf'
%__sed -i mkspecs/*/qmake.conf \
-e "s|^QMAKE_INCDIR_QT.*|QMAKE_INCDIR_QT = %{_includedir}/tqt3|" \
|